The “laboratory tent” and a plant press at the Arctic Flora Project research camp on the Soper River, southern Baffin Island. Paper bags full of moss samples hang from the press, with more lying beside the tent. (Photo courtesy: J.M. Saarela/Canadian Museum of Nature)

An Air Inuit De Havilland Twin Otter on the airstrip at Tasiujaq, Nunavik, one of several northern airports where researchers and engineers are modifying runways to help mitigate the damage caused by melting permafrost. (Photo courtesy Nicolas Perrault III)